<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <meta http-equiv="X-UA-Compatible" content="ie=edge">
  <title>员工列表</title>
  <style>
    * {
      margin: 0;
      padding: 0;
    }

    body a {
      text-decoration: none;
      color: #0d3a4b;
    }

    .active {
      color: #ffffff;
    }

    .wrap {
      width: 700px;
      height: 500px;
      background-color: skyblue;
      margin: 0 auto;
      position: relative;
    }

    .wrap #table {
      width: 460px;
      border-radius: 12px;
      position: absolute;
      left: 50%;
      top: 160px;
      transform: translateX(-50%);
      box-sizing: border-box;
      overflow: hidden;
    }

    .wrap #table thead {
      width: 100%;
      height: 30px;
      line-height: 30px;
      text-align: center;
      border-top-left-radius: 12px;
      border-top-right-radius: 12px;
      color: #fff;
      background: #4cbfe5;
    }

    .wrap #table thead a {
      color: #fff;
    }

    .wrap #table tbody {
      color: #19c2ff;
    }

    .wrap #table tbody a {
      color: #19c2ff;
    }

    .wrap #table tbody tr {
      background: #fff;
    }

    .ctrl {
      position: absolute;
      left: 200px;
      top: 100px;
    }

    .ctrl div {
      width: 300px;
      line-height: 30px;
      display: flex;
      flex-direction: row;
      justify-content: space-around;
    }

    h1 {
      text-align: center;
      padding-top: 20px;
      color: white;
    }
  </style>
</head>

<body>
  <div class="wrap">
    <h1>员工列表</h1>
    <div class="ctrl">
      <div class="age_sort nu">
        <a href="javascript:;">年龄从小到大</a>
        <a href="javascript:;">年龄从大到小</a>
        <a href="javascript:;" class="active">默认排序</a>
      </div>
      <div class="gender_show">
        <a href="javascript:;">只显示男性</a>
        <a href="javascript:;">只显示女性</a>
        <a href="javascript:;" class="active">默认</a>
      </div>
    </div>
    <table id="table">
      <thead>
        <tr>
          <th>id</th>
          <th>姓名</th>
          <th>年龄</th>
          <th>性别</th>
        </tr>
      </thead>
      <tbody>
        <tr>
          <th>0</th>
          <th>小明</th>
          <th>24</th>
          <th>男</th>
        </tr>
      </tbody>
    </table>
  </div>
  <script>
    var data = [
      {
        id: 1,
        name: '小明',
        age: 24,
        gender: '男'
      },
      {
        id: 2,
        name: '小芳',
        age: 30,
        gender: '女'
      },
      {
        id: 3,
        name: '小美',
        age: 31,
        gender: '女'
      },
      {
        id: 4,
        name: '小刚',
        age: 21,
        gender: '男'
      },
      {
        id: 5,
        name: '小琪',
        age: 18,
        gender: '女'
      }
    ];

    var tbodyEl = document.querySelector('tbody')
    var ageAs = document.querySelectorAll('.age_sort a')
    var genderAs = document.querySelectorAll('.gender_show a')


    // 1. 封装渲染数据函数
    function renderDom (data) {
      // 清空tbody
      tbodyEl.innerHTML = ''

      // 遍历数据 动态生成tr
      data.forEach(item => {
        var trEl = document.createElement('tr')
        trEl.innerHTML = `
        <td>${item.id} </td>
        <td>${item.name} </td>
        <td>${item.age} </td>
        <td>${item.gender} </td>`
        tbodyEl.appendChild(trEl)
      })
    }
    // 初始化
    renderDom(data)

    // 2. 封装高亮效果函数
    function changeA (arr) {
      arr.forEach((item, ind) => {
        item.onclick = function () {
          arr.forEach(item => {
            item.className = ''
          })
          item.className = 'active'
        }
      })
    }

    changeA(ageAs)
    changeA(genderAs)

    // 3. 封装年龄排序函数
    // 正排序
    // function sortaFn (data){
    //   data=>{
    //     data.sort((a,b)=>{
    //       return a.age - b.age
    //     })
    //     return data
    //   }
    // }
    // // 倒排序
    // function sortbFn (data){
    //   data=>{
    //     data.sort((a,b)=>{
    //       return b.age - a.age
    //     })
    //     return data
    //   }
    // }

    // ageAs[1].addEventListener('click', sortbFn (data))



  </script>
</body>

</html>